APA (7th ed.) Citation

Gigas, J. De Certitvdine Religionis Christianae.

Chicago Style (17th ed.) Citation

Gigas, Johannes. De Certitvdine Religionis Christianae.

MLA (9th ed.) Citation

Gigas, Johannes. De Certitvdine Religionis Christianae.

Warning: These citations may not always be 100% accurate.